Home / 18,985,363.58-28,479,373.98-9,398,167.94

Finding the Fourth Proportional to 18,985,363.58, 28,479,373.98 and 9,398,167.94

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Solution

The fourth proportional to 18,985,363.58, 28,479,373.98 and 9,398,167.94 is: 14,097,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985,363.58 : 28,479,373.98 = 9,398,167.94 : x
  2. Step 2: Convert to fraction form
    18,985,363.58/28,479,373.98 = 9,398,167.94/x
  3. Step 3: Cross multiply
    18,985,363.58x = 28,479,373.98 × 9,398,167.94
  4. Step 4: Simplify right side
    18,985,363.58x = 267,653,939,490,106.19
  5. Step 5: Solve for x
    x = 267,653,939,490,106.19/18,985,363.58
  6. Step 6: Final answer
    x = 14,097,909.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.